Automatic pressure-governor



Patented' May 3, 1921.

a sHEETs-HEEr 1.

INVENTOR. JJEMS Byy MAN

A TTORNEY.

R.J.JENKS.'

`AUTOMATIC PRESSURE GOVERNOR.

APPLiCATlON FKLEO JUNEB 1920.

RJ. JENKS.

n AUTOMATIC PRESSURE GOVERNOR.

APPLICATION FILED JUNE 831920.

Patented May 3, 1921.

3 SHEETS-SHEET 2.

I INVENTOR.

fllllrlllnllllldlllnnllalu lll/ifi TfoRNEY.

R. J, JENKS.

AUTNIATIC PRESSURE GOVERNOR.

' APPLICATION FILEDJUNES.1920.

l,3'7'7,078. Patented May 3, 1921.

PATENT ortica. v

RANSAEILLER J. anims, or'Lnwis'roiv, IDAHO.

Auron/Atrio PRESSURE-GOVERNOR.

T o all whom 'it may concern Be it known that I, RANsAnmER J. JENKs,

a citizen of the United States, and a resident of Lewiston, in the county of Nez Perce and State of daho, have invented a new and useful Automatic Pressure-Governor, of which the following is a specification.

My invention is an automatic governor for use on gas generators wherein a vacuum supply is employed for drawing the gas fromthe retorts to the hydraulic or service main. The principal obj ect of the invention is to provide an automatic governor which will prevent excessive vacuum draw on the retorts and at the same time control the gas pressure from the retorts to the hydraulic main.

The invention further provides an automatic pressuegovernor for gas generators including an automatic governor to be associated with a stand-pipe of a gas retortfor controlling the flow of gas from the retort to the service or hydraulic main, and to prevent vacuum draw on the retorts after the fuel charges therein have been spent or partially spent. Thus the retorts of the gas generator may be individually controlled and thereby obviate the necessity of shutting downthe entire plant while any one or more of the retorts are being recharged. f

Further, the invention provides an automatic governor that will be operated to allow ygas to liow into the service main after sulficient gas pressure has been generated and reversely, shall be operated to cut off communication Vbetween the service pipe and the re- Y tort when the-gas pressure has fallen, rlhus,

gas below a relatively low volatile quality cannot flow into the service main and thereby lower the quality of gas in the service main. y

It is also an object ofthe invention to pro- -vide a gas pressure governor that may be readily installed on the usual dip pipe Of the gas generating retort. l

The invention further contemplates a gas pressure governor, which is of simple construction and positive 'in operation.` y

With the preceding objects and others that may be hereinafter pointed out, the invention consists in the novel combination of elements,construction, operations and specific details to be fully `setLforth and claimed, the

invention being illustrated Figure l is a fragmentary end elevationof a gas generator having a plurality of lre- Speccaton of Letters-Patent. f Patgntd Maly 3, 1921 Y Application mea Jum-T a V1920. seriai No. 387,399. Y l

torts, the invention being illustrated in connection with thedip pipe of each retort;

Fig. 2 is a vertical sectional view taken' on line 2 2 ofrFig. 1, the dotted line illustration showing weight .Fig 3 is a fragmentary vertical sectional i view of one of the dip pipes and the vpressure control valve associated therewith; Y

Fig. 4 is a detailed view of the valve;

Fig. 5 is an elevation of a pipe tting emp bodied in the invention Fig. 6 is an elevation taken at right angles to F ig. 5;

ig. 7 section and partly in elevation of a modified embodiment of the invention, and

Fig. 8 is a similar view of another modifi-- cation.

Referring in detail to the drawings whereim like characters ofreference designate' corresponding parts :throughout the several views, the numeral 5 designates a conventional gas generator and includes a plurality .of retorts 6, each of which has a vertical stand-pipe 7 leading from one end thereof. The usual hydraulic or service main'is designated at 8 and extending into this main`8 is a plurality of dip pipes 9, each of which has communication with one of the stand-pipes a modiied type ofvcounteris a view partly in vertical'cross4v 7 by a connection 10. Also communCltlg 'i with the service main Vis the usual vacuum Vconduit which is in communication with any source of vacuum supply (not shown). This f structure is one type of gas generator and the parts thereof are referred .to andl illustrated to illustrate my gas pressure governor, one. of which is associated `with the Vdip tube of Although' several retorts and Y each retort.

their dip tubes are shown, each is equipped with a'governor ofidentical construction.

The invention, as reduced to practice, `consists of a T-tting 11, the shorter legvl of which is of the saine diameterY as the dip tube and kis disposed between-the pipe'sec- Y tions formingthe dipptube, this leg l being longitudinally bulged at one side as designated at 12.

Secured to the flange 13 of aI laterally or y v is provided with a removable cover 18 while the outer end of the horizontal leg of the fitting 11 receives a threaded plug 19.

Receiving the vertical pipe 16 and vertij cally movable in the liquid tank 17 is a pressure actuated bell 2O through which a rod 21 passes and is secured thereto by jam nuts 22 threaded upon this rod at opposite sides of,Y

theupper wall of the bell. This rod 21 is vertically movable through the pipe 16 and projects a substantial distance above the cover of the tank 17. A bracket or standard 23 is fixed to the tank 17 to the upper end ofrwhich aflever 2a is pivoted at its center, the latter having one end pivotally connected with the upper end of the rod 21 while a rod 24 carrying counterweights 25, is suspended from it opposite end, the counterweights being such as to normally balance thebell 20 as illustrated in Fig. 2.

The lower end of the dip tube is reduced in thickness Vand affords an annular shoulder 26 which extends at a slight obliqueangle with respectto the horizontal, adapted to close this end of the dip tube a valve designated inits entirety at 27. This valve includes a dished or concave bottom 28 merging into aninwardly disposed'frusto-'conical member 29 at its center. Formed with the Abottom, 28r at its outerk edge is an upstanding annular rim or wall 30 adapted to receive the reduced endrof the dip tube whenv theV valve is in closed position. The rim or wall 30 gradually increases in height from one point to a point diametrically opposite and v in the same plane as the obliquely disposed annular shoulder; thus a gradual seal or closing of the valve will be effected.

. l A relatively long stem 31 is rigid with the frusto-conical member 29 and has'its upper end pivote-cl to a horizontally disposed lever 32 adjacent its inner end which is pivoted adjacent its'opposite end bearings 83 efrtending laterallyV within the horizontal of the fitting 11, this end of the lever being pivoted to the lower end of the rod 21. The inner end of this lever is movable in the depression afforded by the bulged side 12 of the fitting 11.

In operation, the gas generated in the retorts, passes up the stand-pipes and into the dip tubes from where it passes into the horizontal leg of the'iittings and rises in the bell 20. When sufficient pressure has entered between the water-head and bell to overcome the weighted end of the lever11 to lower the free end thereof which causes the valve 27 to move away from the end of the dip tube to permit the vacuum in the hydraulic main to draw on theretorts.

yconnected with a link 35 having its opposite end pivoted to a leverY 36 pivotedv at its center and to the ends` of which operating cables 37 passing around pulleys 38 are connected.

Another modified embodiment of the in- I vention is illustrated in Fig. 8. In this construction, a diaphragm 39 is arranged adjacent one end of the horizontal leg. of the fitting 11 and extending through this diaphragmV andrconnected thereto is an operating rod 10, from the outer end of which weights 41 are suspended. The opposite end of the rod 40 is connected. to a bell crank lever ll2 having operative connection with the valve stem `31. It will be obviousthat vacuum from the hydraulic main will move the diaphragm inwardly to rock the bellV crank lever, thereby lowering the valve. Upon pressure from the retortsfovercoming the vacuum, the diaphragm will be returned to normal position, thereby rocking the bell crank lever to raise the valve. y

It is to be understood that the formsof my invention herein shown and described are to be taken as preferred examples of the same, and that various changes inthe shape,

size'and arrangement of parts may be re-V g sorted to withoutl departing from the spirit of the invention or the scope of the subjoined claims.

Having thus descirbed my invention, what I claim as new and desire to secure and protect by Letters Patent of the United States is:

1. The combination with a gas generator l including a plurality of retorts, each having a vertical stand-pipe anda d ip tube leading Y V- position upon the-pressure cation withV the dip tubes, of a valve slidably mounted upon thevlower end of each/of the' dip tubes and vnormally closing the same, anda counterbalanced Vpressure lifted bell operatively connected with. each ofk the valves whereby to move the latter to open position upon pressure reaching a predetermined degree, the bells returning to normal position to move the valve to a closedV position upon 'pressure falling below the predetermined degree.

3. rlhe combination with a conduit having communication. with a source of pressure, a valve slidably mounted on one end of the conduit, a bell chamber having communication with the conduit, a normally counterbalanced bell within the bell chamber and having operative connection with the valve whereby to move the valveto Open position upon sufcient pressure flowing to the bell chamber to lift the bell.

4. The combination with a conduit having communication with a source of pressure, of a valve adapted to close one end of the conduit, a bell chamber having communication with the conduit and having liquid therein, a counterbalanced bell within the chamber and normally partly submerged in the liquid, an operative connection between the bell and valve to move the same to opened and closed position, the bell returning to its normal position to return the valve to closed position upon pressure falling below a predetermined degree.

5. The combination with a conduit having communication with a source of pressure andA service main, of a normally counterbalanced pressure operated bell having communication with the conduit, a valve adapted to control the pressure lfromV the conduit to the service main, and operative Connections between the bell and valve whereby to move the valve to open position upon ascent of the bell upon pressure reaching a predetermined degree, and returning the valve to closed position upon pressure falling below such vdegree to permit the bell to descend. l

6. The combination with a conduit having communication with a source of presing rod having one end secured to the bell,

and a lever having one end pivotally connected with its rod andthe opposite end pivotally connected to the valve stem.

7. In a pressure governor, a vertical pipe having communication with a source of pressure, a' valve adapted to close one end of the vertical pipe, a horizontally disposed pipe communicating with the vertical pipe, a vertical pipe leading from one end of the latter, a bell chamber supported on said vertical pipe, a bell within the chamber and overlying ,said vertical pipe, means normally counterbalancing the bell, an operating rod connected with the bell and passing through said vertical pipe, a lever passing through the horizontal pipe and extending within the rst mentioned vertical pipe and having one end pivotally connected with the operating rod, and its opposite end operatively connected with the valve whereupon pressure lifting the bell,-

the valve will be moved to open position, the bell returning to normal position upon falling of the pressure.

8. In a pressure governor, a vertical conduit having communication with a source of pressure, a valve including a bottom wall concaved and merging into an inwardly disposed frusto-conical member at its center, and an annular rim adapted to receive one end of the pipe when the valve isinclosed position, a relatively long stem extending within the conduit and having one end secured to the frusto-conical member, and means operatively connected withthe valve stem for moving the valve to open and closed position.

9. The combination with a gas generator including'a service main having'communication with a source of pressure and a source of vacuum, a bell chamber communicating with the service main, a vertically movable bell mounted therein, and means operated by the bell upon ascent of the same caused by .gas pressure therein to permit pressure to flow into the service main; the bell being drawn downwardly to cause such means to be moved to a position to cut ofi' communication between the service main and'bell cham- ]le'l upon exhaustion of pressure from the 10. The combination with a gas apparatus including aretort and service main having communication with a source of vacuum, a

stand-pipe communicating with the service main and retort, a dip tube communicating with the service main and stand pipe of a vertically movable valve Jfor closing one end of the diptube, a bell chamber, a bell 'mounted therein and 'operatively connected with the valve andadapted toV be raised vertically to open the valve upon sufficient pressure entering beneath the bell, the bell being caused to descend to close the valve uponeXhaustion of pressure from the bell.-

RANSAELLER J. JENKs. 

